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Vishay General Semiconductor - Diodes Division 1.5SMC150AHM3/H
- Part No.:
- 1.5SMC150AHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC150AHM3/H.pdf
- Description:
- TVS DIODE 128VWM 207VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,449
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Product details
Overview
1.5SMC150AHM3/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for robust overvoltage protection in power and signal lines. It features a 150 V standoff voltage (VWM), 207 V maximum clamping voltage (VC) at 7.2 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 μs waveform - deployed in automotive power supplies, industrial motor controllers, and telecom interface protection.
For engineers reviewing the 1.5SMC150AHM3/H datasheet, 1.5SMC150AHM3/H pinout, 1.5SMC150AHM3/H application, or 1.5SMC150AHM3/H equivalent, this part delivers AEC-Q101-qualified surge immunity in SMC (DO-214AB) package with halogen-free, RoHS-compliant construction - critical for high-reliability automotive and industrial designs requiring validated transient suppression performance.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable breakdown behavior and low incremental surge resistance. Its response time is sub-nanosecond, enabling effective suppression of fast transients from inductive switching or ESD events.
Thermal design is supported by RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), with derating above 25 °C per Figure 2. The device sustains 200 A non-repetitive forward surge current (IFSM) and operates across -65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 128 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown) | 143–158 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping) | 207 V at IPPM = 7.2 A - Peak voltage seen by protected circuit under 1500 W transient; limits stress on downstream ICs/MOSFETs. |
| PPPM | 1500 W - Peak pulse power handling with 10/1000 μs waveform; meets IEC 61000-4-5 Level 4 surge immunity requirements. |
| ID (Leakage) | 1.0 μA max at VWM - Ultra-low reverse leakage preserves efficiency in battery-powered or high-impedance circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and enclosed industrial enclosures without thermal shutdown. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 8.0 mm × 8.0 mm copper pad footprint; supports automated assembly and IPC-compliant reflow. |
Pinout & Package
Package: SMC (DO-214AB), molded case with matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 rated compound. Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal in normal operation | Connected to protected line (e.g., VIN, signal rail); conducts during positive transients relative to ground. |
| Anode (unbanded end) | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping current path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for engine control units and ADAS power rails. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets EU Directive 2011/65/EU and JEDEC J-STD-203; eliminates brominated flame retardants for safer end-of-life processing. |
| 1500 W peak pulse power | Withstands 10/1000 μs surges up to 7.2 A without degradation - protects against lightning-induced transients in telecom base stations and industrial PLCs. |
| Low clamping ratio (VC/VBR ≈ 1.38) | Minimizes voltage overshoot during clamping; reduces risk of latch-up or gate oxide damage in MOSFETs and microcontrollers. |
| Fast response time (< 1 ns) | Activates before most semiconductor junctions can be damaged by ESD or fast-rising transients - essential for USB, CAN, and sensor interfaces. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive DC Bus |
|---|---|
Use Scenario: Protecting 12 V/24 V vehicle power distribution networks from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and ECUs or infotainment modules to clamp spikes up to ±100 V. Use Value: Withstands 200 A IFSM and operates to +150 °C - enables direct integration into under-hood fuse boxes and body control modules. |
Use Scenario: Safeguarding IGBT gate drivers and bus voltage sensors in variable-frequency drives subjected to inductive kickback. IC Role / Device Role / Timing Role: Clamping diode mounted across DC link capacitors or gate drive supply rails to suppress switching-induced dv/dt spikes. Use Value: 207 V clamping at 7.2 A ensures MOSFETs remain within safe operating area during 1500 W surge events. |
| Telecom Interface Surge Protection | Consumer Power Adapter Input Stage |
Use Scenario: Front-end protection for Ethernet PHYs, RS-485 transceivers, and PoE injectors exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Primary-level TVS on line-side inputs, coordinated with GDTs or MOVs in multi-stage protection schemes. Use Value: Low 1.0 μA leakage at 128 V VWM prevents standby power loss; 1500 W rating satisfies IEC 61000-4-5 Ed. 3 Class 4 compliance. |
Use Scenario: Input-stage transient suppression in AC-DC adapters for smart home devices and IoT hubs. IC Role / Device Role / Timing Role: Unidirectional clamping device placed after bridge rectifier to absorb line-to-ground surges. Use Value: Halogen-free HM3 construction supports global regulatory compliance; SMC package enables compact, automated PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ150A-E3/52 | Same VWM (128 V), lower PPPM (600 W), SMB package (smaller footprint, higher RθJA = 85 °C/W) | Limited to lower-energy transients; not AEC-Q101 qualified | Select when space-constrained layouts prioritize footprint over automotive qualification and 1500 W surge headroom. |
| 1.5KE150A | Through-hole DO-201 package, identical electrical specs (VWM = 128 V, VC = 207 V), no AEC-Q101 or halogen-free certification | Requires wave soldering; unsuitable for fully SMT production or automotive PPAP submission | Choose only for legacy through-hole designs where rework flexibility outweighs automated assembly and compliance needs. |
Compared with SMBJ150A-E3/52 and 1.5KE150A, the 1.5SMC150AHM3/H uniquely combines AEC-Q101 qualification, halogen-free construction, 1500 W surge capability, and SMC package - making it the sole option meeting full automotive production requirements without layout or process compromise.
Availability
1.5SMC150AHM3/H is available at Aetrix Electronics and suitable for automotive power systems, industrial motor controls, telecom infrastructure, and consumer power adapter designs requiring stable component supply and long-term lifecycle assurance.
Supply support for 1.5SMC150AHM3/H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific validation.
The 1.5SMC Series was engineered for high-power transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure resilience and regulatory compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC150AHM3/H under maximum rated surge current?
The 1.5SMC150AHM3/H exhibits a maximum clamping voltage (VC) of 207 V when subjected to its rated peak pulse current (IPPM) of 7.2 A using the standard 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88303 and defines the upper voltage limit imposed on protected circuitry during worst-case transient events.
Is the 1.5SMC150AHM3/H suitable for automotive applications?
Yes, the 1.5SMC150AHM3/H is AEC-Q101 qualified and carries the HM3 suffix denoting halogen-free, RoHS-compliant construction - explicitly intended for automotive use. It meets temperature, surge, and reliability requirements for engine control units, body electronics, and ADAS power domains per Vishay's qualification report referenced in document 88303.
What does the "HM3" suffix indicate in 1.5SMC150AHM3/H?
The "HM3" suffix in 1.5SMC150AHM3/H specifies halogen-free, RoHS-compliant materials and AEC-Q101 qualification. Per Vishay's ordering guide, HM3 denotes compliance with JEDEC J-STD-203 and automotive stress testing - distinguishing it from commercial-grade M3 or E3 variants that lack automotive validation.
How does the 1.5SMC150AHM3/H differ from bidirectional TVS diodes like 1.5SMC150CA?
The 1.5SMC150AHM3/H is unidirectional and features a cathode band for polarity-sensitive placement, while 1.5SMC150CA is bidirectional with no polarity marking. Electrically, the unidirectional version supports forward conduction (IFSM = 200 A) and is used where DC bias exists; the bidirectional variant handles AC-coupled or symmetric transient paths without polarity constraints.
What is the thermal resistance of the 1.5SMC150AHM3/H, and how does it affect PCB layout?
The 1.5SMC150AHM3/H has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under sustained 6.5 W dissipation, designers must allocate adequate copper area and avoid excessive trace length - confirmed in Vishay's thermal curves (Figure 2, doc 88303).
1.5SMC150AHM3/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 128V
- Voltage - Breakdown (Min):
- 143V
- Voltage - Clamping (Max) @ Ipp:
- 207V
- Current - Peak Pulse (10/1000µs):
- 7.2A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
1.5SMC150AHM3/H FAQ
1.How can I place an order for 1.5SMC150AHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC150AHM3/H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1.5SMC150AHM3/H reliable?
The price and inventory of 1.5SMC150AHM3/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1.5SMC150AHM3/H is usually 5 days.
3.What payment methods are accepted for 1.5SMC150AHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC150AHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC150AHM3/H?
1.5SMC150AHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC150AHM3/H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1.5SMC150AHM3/H?
For technical support, including 1.5SMC150AHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC150AHM3/H requirements.
6.How does Aetrix verify that 1.5SMC150AHM3/H is sourced from the original manufacturer or authorized distributors?
All 1.5SMC150AHM3/H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1.5SMC150AHM3/H meets industry standards.
7.What is the process for return or replacement of 1.5SMC150AHM3/H?
All 1.5SMC150AHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC150AHM3/H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1.5SMC150AHM3/H part is unused and in its original packaging.
Return procedure for 1.5SMC150AHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC150AHM3/H Tags
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